87852173 has 2 divisors, whose sum is σ = 87852174. Its totient is φ = 87852172.

The previous prime is 87852161. The next prime is 87852179. The reversal of 87852173 is 37125878.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69172489 + 18679684 = 8317^2 + 4322^2 .

It is a cyclic number.

It is not a de Polignac number, because 87852173 - 2⁸ = 87851917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87852173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87852179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43926086 + 43926087.

It is an arithmetic number, because the mean of its divisors is an integer number (43926087).

Almost surely, 2^87852173 is an apocalyptic number.

It is an amenable number.

87852173 is a deficient number, since it is larger than the sum of its proper divisors (1).

87852173 is an equidigital number, since it uses as much as digits as its factorization.

87852173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 41.

The square root of 87852173 is about 9372.9490023151. The cubic root of 87852173 is about 444.5468146528.

The spelling of 87852173 in words is "eighty-seven million, eight hundred fifty-two thousand, one hundred seventy-three".